Verify actual current-token access to built-in event channels (#432)

* Add actual current-token native channel read evidence

* Use supported workflow shells and link channel-read changelogs

* Handle real event exceptions and bind loaded token helper to source

* Capture query-token interval after evidence and metadata preparation

* Retain native child process exit evidence across PowerShell engines

* Bound native reader fixture pipe draining and child termination

* Preserve native errors from attributed channel query statuses

.gitattributes

@@ -39,6 +39,10 @@ modules/WecSubscriptionXml.cs text eol=lf
 scripts/AppLockerProbe.ps1 text eol=lf
 tests/AppLockerProbe*.ps1 text eol=lf
 
+/scripts/ChannelRead.ps1 text eol=lf
+/scripts/ChannelReadNative.cs text eol=lf
+/config/native_channel_profile.json text eol=lf
+/tests/ChannelRead*.ps1 text eol=lf
 # Pending AD CS restart plans bind exact implementation bytes.
 /scripts/AdcsRestartResume.ps1 text eol=lf
 /scripts/AdcsAuditing.ps1 text eol=lf